Sequential and independent alkylation of [Pt₂(μ-SR) (μ-S) (PPh₃)₄] by RX followed by methylation with Me₂SO₄ led to the first successful isolation of novel diplatinum complexes [Pt₂(μ-SR) (μ -SCH₃) (PPh₃)₄](PF₆)₂ (3) (R= ...